Sharktopus

A half-shark and half-octopus creature created for the military creates a whole lot of terror in Mexico, while the scientist who helped to create it tries to either capture or kill it.

Sharktopus is a 2010 adventure fantasy movie directed by Declan O'Brien, starring Eric Roberts, Héctor Jiménez, Sara Malakul Lane. It holds an IMDb rating of 3.3/10 from 14,633 votes and runs 1h 29m.